Dear J.Gerald jayakumar,
On Sunday, August 2, 2015 at 9:35:01 AM UTC+4, gerr...@yahoo.com wrote:
-- The following statements are given in API-650.
Material specifications listed in Section 4 of this standard but not included in Table QW-422 of Section IX of the ASME Code shall be considered as P1 material with group numbers assigned as follows according to the minimum tensile strength specified:
a) less than 485 MPa (70 ksi)-Group 1;
b) equal to or greater than 485 MPa (70 ksi) but less than 550 MPa (80 ksi)-Group 2;
c) equal to or greater than 550 MPa (80 ksi)-Group 3
According to above statements, our material i.e. S355J2 which has 470 MPa SMTS is P1 Group 1 material whereas API-516 Gr. 70 is group 2 material as per ASME Sec IX QW-422. therefore we need qualify a new PQR. Am i right?
On Sunday, August 2, 2015 at 9:35:01 AM UTC+4, gerr...@yahoo.com wrote:
S355 J2 is not listed in ASME Sec.IX and hence to be considered as unassigned material which requires separate PQR.Thanks & RegardsJ.Gerald Jayakumar0091-9344954677
From: Kannayeram Gnanapandithan <kgpan...@gmail.com>
To: materials-welding <material...@googlegroups.com >
Sent: Saturday, August 1, 2015 8:56 PM
Subject: Re: [MW:23243] Material listed on WPS different from PQR
Check with Pnos, if same ,there will not be a problem--On 01-Aug-2015 8:43 pm, "sarfraz ahmad" <sarfraz...@gmail.com> wrote:Previously the selected material for tanks construction was SA-516 Gr. 70 but to unavailability of selected material in the market, a comparison was made b/w chemical composition and mechanical properties of easily available material i.e. S355J2 and selected for construction instead of SA-516 Gr. 70. Now the question is that we have PQR for SA-516 Gr. 70 and the referenced WPS is listed with new material i.e. S355J2. can we use use these WPS and PQR?--
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com .
To post to this group, send email to material...@googlegroups.com .
Visit this group at http://groups.google.com/group/materials-welding .
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/ .65d75367-2de0-4ae6-a638- 0c59ed3ce305%40googlegroups. com
For more options, visit https://groups.google.com/d/optout .
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com .
To post to this group, send email to material...@googlegroups.com .
Visit this group at http://groups.google.com/group/materials-welding .
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/ .CAJzm4eMvMoAwrZL%3DA% 3DuTuKbwdDrH%2BG%3D8HyEhiVD31% 2BiJjFKAYw%40mail.gmail.com
For more options, visit https://groups.google.com/d/optout .
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To post to this group, send email to materials-welding@googlegroups.com.
Visit this group at http://groups.google.com/group/materials-welding.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/5cdbb52c-fc09-43a8-ac04-c2e93aedda82%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
Comments